server/src/res/resources.xml

<?xml version="1.0"?>
<resources>
  <resource name="mistletoe">
    <!-- Sets the chance of escape in a fight to 100 percent -->
    <item notlost="yes" weight="0">
      <function name="use" value="usemistletoe"/>
    </item>
  </resource>
  <resource name="wand_of_tears">
    <item notlost="yes" weight="1" capacity="0">
      <function name="use" value="use_wand_of_tears"/>
    </item>
  </resource>

  <resource name="snowball">
    <!-- xmas gimmik -->
    <item notlost="yes" weight="0">
      <function name="use" value="usesnowball"/>
    </item>
  </resource>

  <resource name="snowman">
    <!-- xmas gimmik -->
    <item notlost="yes" weight="1">
    </item>
  </resource>
</resources>